Quote:
Originally Posted by Kevin Ainsworth
The larger gear in Aren's design might be larger but the smaller gear is much smaller. I would go off tooth size and not OD of the largest gear.
Our actual module weighs in at 7.5 lbs with no additional lightening of the gears, etc. This is too be expected since all the steel screws weren't added to the CAD model. We'll post a video of it driving around just as soon as it is, should have it powered up this afternoon.
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The smaller gear is probably 15t or 18t compared to the 20/40 combo I use in my modules, but I don't know for sure. I tend to use 1 module gears (about 24 pitch) for my stuff.
The weight comes not only from the teeth but the face of the gear I think, as well as the hub. As the diameter of the gear increases the area/ volume of the gear increases considerably.
You actually made your module? Super cool! I'll be looking forward to seeing it driving.